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One Hundred Fifty-Six Thousand Stars Draw a Pulsation Map
TESS and Gaia identify 156,706 delta Scuti pulsators among more than 1.5 million surveyed A- and F-type stars.
Summary
TESS and Gaia identify 156,706 delta Scuti pulsators among more than 1.5 million surveyed A- and F-type stars.
The pulsator fraction peaks at 30 percent across the full instability strip and 80 percent in the brightest bins, showing that sensitivity explains much but not all apparent impurity. Cluster cross-matches suggest mean pulsation frequency may serve as an ensemble age indicator for young populations.
Why it matters
TESS and Gaia identify 156,706 delta Scuti pulsators among more than 1.5 million surveyed A- and F-type stars.
Limits and context
- The pulsator fraction peaks at 30 percent across the full instability strip and 80 percent in the brightest bins, showing that sensitivity explains much but not all apparent impurity.
Key claims
TESS and Gaia identify 156,706 delta Scuti pulsators among more than 1.5 million surveyed A- and F-type stars.
Qualification: The pulsator fraction peaks at 30 percent across the full instability strip and 80 percent in the brightest bins, showing that sensitivity explains much but not all apparent impurity.
Evidence: source-2026-10-30-021
Sources
- arXiv preprint 2610.40656, original v1arXiv · primary research
Corrections
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